Yes, when I installed the 2012 RC, it screwed up my install of 2010. I had to repair the install. Grrr. Same thing happened when I installed the RTM (double dutch grr), but that may be because I had previously installed the RC on the same machine.
Other than that, they both run well side by side.
If your actions inspire others to dream more, learn more, do more and become more, you are a leader.-John Q. Adams You must accept one of two basic premises: Either we are alone in the universe, or we are not alone in the universe. And either way, the implications are staggering.-Wernher von Braun Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.-Albert Einstein
As Paul says, you don't get it included with the Express editions; that's why they are free. I did read somewhere that it may be possible to buy the MFC libraries and add them to your system, but you would need to ask Microsoft about that.
One of these days I'm going to think of a really clever signature.
And so what is your point? Everyone answering questions here is a volunteer and even volunteers take days off now and then. Someone will answer if and when they choose. If you require an answer right away then you should be asking Microsoft for support. That is what their support people are paid to do.
Why is common sense not common?
Never argue with an idiot. They will drag you down to their level where they are an expert.
Sometimes it takes a lot of work to be lazy
Please stand in front of my pistol, smile and wait for the flash - JSOP 2012